@nicknorman An overtake in a wagon that takes more than a minute or two.
The polite thing of the other wagon driver being overtaken is to let off and then flash back them back in. Saves all the nonsense of trucks holding traffic up for ages. ( flashing another driver back in is illegal but everyone does it)
However this doesn’t always happen, and if they are running alongside you for ages your supposed to call it and abort the overtake. It’s called them holding you out. Some trucks roll away over the limiter on down hill sections to be then caught back up by the faster or lighter truck and the tailbacks just grow larger.
You get it in all walks, some drivers are polite and considerate. Some wreckless and rude.